Novel multi-channel single-hole device

Abstract

The utility model discloses a novel multi-channel single-hole device, and relates to the technical field of medical instruments. The channel structure comprises a silicon rubber case, an instrument channel and an air injection valve, wherein the instrument channel and the air injection valve are communicated with the silicon rubber case; the sealing connection structure comprises a sealing inner ring, a hinge seat is connected to the peripheral side of the sealing inner ring, a first outer ring and a second outer ring are hinged to the hinge seat, the first outer ring and the second outer ring rotate around a hinge point and then define an annular cavity structure, and the ends, away from the hinge point, of the first outer ring and the second outer ring are detachably connected. The sealing inner ring is embedded in the silicon rubber sleeve, and the channel structure can rotate relative to the sealing inner ring. The two sealing rings are arranged on the sealing inner ring in a sleeved mode, the outer clamping ring of the protective sleeve structure is arranged on the sealing inner ring in a sleeved mode, the first outer ring and the second outer ring are used for locking the outer clamping ring, so that the sealing inner ring and the outer clamping ring achieve the sealing effect, and meanwhile disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and particularly relates to a novel multi-channel single-hole device. Background Art

[0002] Single-port laparoscopic surgery has fewer incisions and is more aesthetically pleasing than traditional multi-port laparoscopic surgery, and it is one of the development directions of minimally invasive surgery. The surgical channel is a key instrument in single-port laparoscopic surgery. In single-port laparoscopic surgery, a surgical channel needs to be placed in the only incision, and there are multiple instrument holes on the surgical channel for placing multiple operating instruments such as surgical forceps and surgical scissors. The existing single-port laparoscopic surgical channels currently have the following deficiencies during surgery: 1. Due to different patient groups, the number of turns of the lower flip of the incision protector is different, which ultimately affects the diameter of the outer snap ring of the incision protector. If the diameter is too large, it may cause poor airtightness and air leakage, resulting in a poor surgical field of view; if the diameter is too small, it will be difficult to install, and repeated disassembly during surgery is likely to tear the wound, consuming a large amount of physical energy of medical staff; 2. Due to limited surgical space and a large number of instruments, the operation angle during surgery is very limited, seriously affecting the operation of medical staff. Content of the Utility Model

[0003] The purpose of the utility model is to provide a novel multi-channel single-hole device to solve the technical problems proposed in the above background art.

[0004] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0005] A novel multi-channel single-hole device, comprising:

[0006] A channel structure, including a silicone sleeve and an instrument channel and an air injection valve configured to communicate with the silicone sleeve;

[0007] A sealed connection structure, including a sealed inner ring, an articulated seat is connected to the outer peripheral side of the sealed inner ring, a first outer ring and a second outer ring are articulated on the articulated seat, the first outer ring and the second outer ring enclose a ring cavity structure after rotating around the articulation point, one ends of the first outer ring and the second outer ring away from the articulation point are detachably connected, the sealed inner ring is embedded in the silicone sleeve, and the channel structure can rotate relative to the sealed inner ring;

[0008] A protective sleeve structure, including a sleeve body, an outer snap ring and an inner snap ring are respectively arranged at both ends of the sleeve body, the outer snap ring is located in the ring cavity structure, and the first outer ring and the second outer ring squeeze and lock the outer snap ring.

[0009] Further, the channel structure further includes an upper ferrule and a lower ferrule. A convex edge is formed on the outer peripheral side of the silica gel sleeve. The lower ferrule is located inside the silica gel sleeve and contacts the inner surface of the convex edge. The upper ferrule is sleeved outside the silica gel sleeve and contacts the outer surface of the convex edge. The upper ferrule and the lower ferrule are in interference fit to fix the silica gel sleeve.

[0010] Further, a part of the structure of the inner sealing ring is located inside the silica gel sleeve and is movably matched with the lower ferrule.

[0011] Further, an embedded ring is installed on the inner sealing ring. The embedded ring is located inside the lower ferrule and abuts tightly against the lower ferrule.

[0012] Further, a retaining pawl is formed on the first outer ring, and a retaining pawl is formed on the second outer ring. The retaining pawl meshes with the ratchet teeth.

[0013] Further, a spring piece is installed inside the first outer ring. The end of the ratchet tooth abuts against the spring piece.

[0014] Further, extrusion grooves are formed on the inner peripheral sides of the first outer ring and the second outer ring.

[0015] Further, a sealing ring for abutting against the outer ferrule is embedded on the outer peripheral side of the inner sealing ring.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model uses two sealing rings sleeved on the inner sealing ring. The outer ferrule of the protective sleeve structure is sleeved on the inner sealing ring, and the first outer ring and the second outer ring are used to lock the outer ferrule, so that the inner sealing ring and the outer ferrule achieve a sealing effect, and at the same time, the disassembly is relatively convenient.

[0018] 2. After the present utility model is assembled, the protective sleeve structure and the sealed connection structure do not rotate horizontally, and only the channel structure can rotate horizontally, increasing the adjustable angle range during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is the Figure 1 exploded structural schematic diagram of the present utility model;

[0021] Figure 3 is the Figure 2 structural three-dimensional diagram of the present utility model;

[0022] Figure 4 is the three-dimensional diagram of the sealed connection structure and the protective sleeve structure of the present utility model;

[0023] Figure 5is the present utility model Figure 4 an isometric sectional view in the A-A direction in the present utility model;

[0024] Figure 6 is a schematic structural view of the first outer ring and the second outer ring of the present utility model;

[0025] Figure 7 is the present utility model Figure 1 another schematic view of the explosion structure.

[0026] Reference numerals: 1, channel structure; 101, silica gel sleeve; 102, instrument channel; 103, gas injection valve; 104, convex edge; 105, upper ferrule; 106, lower ferrule; 2, sealing connection structure; 201, sealing inner ring; 202, hinge seat; 203, first outer ring; 204, second outer ring; 205, extrusion groove; 206, ratchet tooth; 207, detent; 208, embedded ring; 209, sealing ring; 210, elastic piece; 3, protective sleeve structure; 301, sleeve body; 302, outer snap ring; 303, inner snap ring. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0028] As Figures 1-7 shown, a novel multi-channel single-hole device proposed in an embodiment of the present utility model includes:

[0029] A channel structure 1, including a silica gel sleeve 101 and an instrument channel 102 and a gas injection valve 103 configured to communicate with the silica gel sleeve 101. The instrument channel 102 is for instruments such as surgical forceps and surgical scissors to pass through and enter the surgical cavity to complete the work of excising patient tissues, and the purpose of the gas injection valve 103 is to establish a pneumoperitoneum;

[0030] A sealing connection structure 2, including a sealing inner ring 201. A hinge seat 202 is connected to the outer peripheral side of the sealing inner ring 201. A first outer ring 203 and a second outer ring 204 are hinged on the hinge seat 202. The first outer ring 203 and the second outer ring 204 enclose a ring cavity structure after rotating around the hinge point. One ends of the first outer ring 203 and the second outer ring 204 away from the hinge point are detachably connected. The sealing inner ring 201 is embedded in the silica gel sleeve 101, and the channel structure 1 can rotate relative to the sealing inner ring 201. The channel structure 1 can rotate horizontally, increasing the adjustable angle range during the operation, and the channel structure 1 is in close contact with the sealing inner ring 201 to ensure the sealing performance;

[0031] The protective sleeve structure 3 includes a sleeve body 301, and the two ends of the sleeve body 301 are respectively provided with an outer snap ring 302 and an inner snap ring 303, the outer snap ring 302 is located in the ring cavity structure, and the first outer ring 203 and the second outer ring 204 squeeze and lock the outer snap ring 302. When the single-hole device proposed by the utility model is used, it includes the following steps:

[0032] 1. Place the inner clamp ring 303 of the protective cover structure 3 into the cavity from the patient's incision, and according to the patient's tissue thickness, turn over the outer clamp ring 302 to adjust the height of the incision protective cover to a suitable position;

[0033] 2. Open the first outer ring 203 and the second outer ring 204, and sleeve the outer clamping ring 302 on the outside of the sealing inner ring 201. Then rotate the first outer ring 203 and the second outer ring 204 again, fasten the first outer ring 203 and the second outer ring 204, and lock the outer clamping ring 302 tightly to ensure the connection stability and sealing;

[0034] 3. Connect the air inlet pipe and the air injection valve 103, close the other air injection valves 103, establish pneumoperitoneum, and let the surgical instruments enter the cavity through the instrument channel 102, and then perform the surgical operation;

[0035] 4. When the excised tissue needs to be removed during the surgical operation, the first outer ring 203 and the second outer ring 204 are opened, and the sealing connection structure 2 is separated from the protective sleeve structure 3 , and the excised tissue is taken out through the sleeve body 301 of the protective sleeve structure 3 .

[0036] 5. After tissue cleaning is completed, repeat step 3 to establish pneumoperitoneum and check that all actions in the cavity have been completed. After confirmation, remove the sealing connection structure 2, take out the protective cover structure 3, and then suture the wound to complete the operation.

[0037] During the entire surgical procedure, the sealing connection structure 2 and the protective sleeve structure 3 cannot rotate and remain stable, but the channel structure 1 can rotate, thereby changing the position of the instrument channel 102 and increasing the surgical scope.

[0038] Based on the above disclosed content, the advantages of the utility model over the prior art are as follows:

[0039] 1. The installation principle of the multi-channel sealing body and the incision protection cover in the existing multi-channel single-hole puncture device for single-hole laparoscopic surgery is as follows: the ring where the sealing body and the incision protection cover are fixed is covered with an integral silicone rubber, and the friction during the installation process is large, which makes it difficult to install. However, the utility model adopts a silicone rubber cover 101 on the sealing connection structure 2, and the outer clamping ring 302 of the protection cover structure 3 is covered on the sealing inner ring 201, and the first outer ring 203 and the second outer ring 204 are used to lock and squeeze the outer clamping ring 302, so that the sealing inner ring 201 and the protection cover structure 3 achieve a sealing effect, and it is also relatively convenient to disassemble.

[0040] 2. In the existing multi-channel single-port trocar for single-port laparoscopic surgery, after the installation of the multi-channel seal body and the incision protector sleeve, it is basically impossible to achieve horizontal rotation, and the angle is limited. However, after the assembly of the utility model, the protector sleeve structure 3 and the seal connection structure 2 do not rotate horizontally, and only the channel structure 1 can rotate horizontally, increasing the adjustable range of the angle during the operation.

[0041] As Figures 1-3 shown, in some embodiments, the channel structure 1 further includes an upper ferrule 105 and a lower ferrule 106. A convex edge 104 is formed on the outer peripheral side of the silicone sleeve 101. The lower ferrule 106 is located inside the silicone sleeve 101 and contacts the inner surface of the convex edge 104. The upper ferrule 105 is sleeved outside the silicone sleeve 101 and contacts the outer surface of the convex edge 104. The upper ferrule 105 and the lower ferrule 106 are in interference fit to fix the silicone sleeve 101. In order to achieve the stable connection between the silicone sleeve 101 and the inner seal ring 201, the lower ferrule 106 is placed inside the silicone sleeve 101 in an embedded manner to form a supporting effect on the silicone sleeve 101 and ensure the stability of the flared opening of the silicone sleeve 101. The upper ferrule 105 and the lower ferrule 106 cooperate together to complete the pressing of the silicone sleeve 101, so that the open end of the silicone sleeve 101 is stable and not easily deformed. Part of the structure of the inner seal ring 201 is located inside the silicone sleeve 101 and is in movable cooperation with the lower ferrule 106. The overall structure of the channel structure 1 and the inner seal ring 201 maintain a close contact relationship. The inner seal ring 201 forms a support for the channel structure 1, and the two are not locked and can rotate in the horizontal direction. An embedded ring 208 is installed on the inner seal ring 201. The embedded ring 208 is located inside the lower ferrule 106 and abuts against the lower ferrule 106. With the cooperation of the embedded ring 208, the tightness of their contact is improved and the sealing performance is maintained.

[0042] As Figures 1-7As shown, in some embodiments, a detent 207 is formed on the first outer ring 203, and a ratchet tooth 206 is formed on the second outer ring 204. The ratchet tooth 206 and the detent 207 are engaged with each other. When the first outer ring 203 and the second outer ring 204 rotate and approach each other, the detent 207 and the ratchet tooth 206 are engaged to lock the first outer ring 203 and the second outer ring 204. Both the first outer ring 203 and the second outer ring 204 are made of deformable materials such as plastic. By deforming, the first outer ring 203 and the second outer ring 204 are separated. When the first outer ring 203 and the second outer ring 204 are locked, an extrusion is formed on the outer snap ring 302, so that the outer snap ring 302 closely adheres to the sealing inner ring 201, ensuring the sealing performance of the connection. And by deforming, the friction is increased to improve the connection stability. In order to further improve the connection stability and sealing performance, extrusion grooves 205 are formed on the inner circumferential sides of the first outer ring 203 and the second outer ring 204. Part of the structure of the deformed outer snap ring 302 is located in the extrusion grooves 205, increasing the contact area. And a spring piece 210 is installed on the inner side of the first outer ring 203. The end of the ratchet tooth 206 abuts against the spring piece 210. When the first outer ring 203 and the second outer ring 204 are locked, since the ratchet tooth 206 abuts against the spring piece 210, the spring piece 210 deforms and applies a reaction force to the ratchet tooth 206, so that the ratchet tooth 206 and the detent 207 are tightly abutted against each other, improving the connection stability.

[0043] As Figure 2 As shown, in some embodiments, a sealing ring 209 for abutting against the outer snap ring 302 is embedded on the outer peripheral side of the sealing inner ring 201. The number of the sealing rings 209 is two. Based on the cooperation of the two sealing rings, the abutting effect is improved, and the sealing performance is improved.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel multi-channel single-hole device, characterized in that: include: A channel structure (1) comprises a silicone sleeve (101) and an instrument channel (102) and an air injection valve (103) arranged and connected to the silicone sleeve (101); The sealing connection structure (2) comprises a sealing inner ring (201), the outer peripheral side of the sealing inner ring (201) is connected to a hinge seat (202), a first outer ring (203) and a second outer ring (204) are hingedly connected to the hinge seat (202), the first outer ring (203) and the second outer ring (204) are rotated around the hinge point to enclose a ring cavity structure, the first outer ring (203) and the second outer ring (204) are detachably connected at one end away from the hinge point, the sealing inner ring (201) is embedded in the silicone sleeve (101), and the channel structure (1) can rotate relative to the sealing inner ring (201); The protective sleeve structure (3) comprises a sleeve body (301), wherein two ends of the sleeve body (301) are respectively provided with an outer retaining ring (302) and an inner retaining ring (303), wherein the outer retaining ring (302) is located in the ring cavity structure, and the first outer ring (203) and the second outer ring (204) squeeze and lock the outer retaining ring (302).

2. A novel multi-channel single-hole device according to claim 1, characterized in that: The channel structure (1) also includes an upper ferrule (105) and a lower ferrule (106); the outer peripheral side of the silicone sleeve (101) is configured with a convex edge (104); the lower ferrule (106) is located on the inner side of the silicone sleeve (101) and contacts the inner surface of the convex edge (104); the upper ferrule (105) is sleeved on the outer side of the silicone sleeve (101) and contacts the outer surface of the convex edge (104); the upper ferrule (105) and the lower ferrule (106) are interference fit to fix the silicone sleeve (101).

3. A novel multi-channel single-hole device according to claim 2, characterized in that: The sealing inner ring (201) is partially located in the silicone sleeve (101) and is movably matched with the lower clamping sleeve (106).

4. A novel multi-channel single-hole device according to claim 3, characterized in that: An embedded ring (208) is installed on the sealing inner ring (201), and the embedded ring (208) is located inside the lower ferrule (106) and is tightly pressed against the lower ferrule (106).

5. A novel multi-channel single-hole device according to claim 1, characterized in that: A locking claw (207) is configured on the first outer ring (203), and a ratchet (206) is configured on the second outer ring (204), and the ratchet (206) and the locking claw (207) are meshed with each other.

6. A novel multi-channel single-hole device according to claim 5, characterized in that: A spring sheet (210) is installed on the inner side of the first outer ring (203), and the end of the ratchet tooth (206) abuts against the spring sheet (210).

7. A novel multi-channel single-hole device according to claim 1, characterized in that: The first outer ring (203) and the second outer ring (204) are both configured with extrusion grooves (205) on their inner circumferences.

8. A novel multi-channel single-hole device according to claim 1, characterized in that: A sealing ring (209) is embedded in the outer peripheral side of the sealing inner ring (201) and is used to tightly abut against the outer clamping ring (302).

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